TWM596227U - Cutting wheel capable of adjusting sharpness through blade angle - Google Patents

Abstract

The new type of cutting blade wheel for adjusting the sharpness through the angle of the blade edge includes a round Body, and a plurality of cutting teeth formed on the outer periphery of the wheel body; wherein, each of the cutting teeth has two tangent planes connected, and one formed at the junction of the two tangent planes and extending from both sides of the tooth crest to the two tooth roots The cutting edge, and the aforementioned tooth tip is provided at the outermost edge of the wheel body, and the cutting edge is at different positions of the wheel body, the two cutting planes show different angle changes, so that the cutting wheel can be formed with The cutting edges with different sharpness effectively improve the tolerance of the cutting wheel to pressure fluctuations, so that the cutting teeth ensure the same cutting quality under the condition of greater pressure fluctuations, so that they can better adapt to the cutting of large-format glass. Effectively improve the mass production yield and cutting stability.

Description

Cutting blade wheel for sharpness adjustment through blade angle

The invention relates to a cutting tool, in particular to a cutting knife wheel whose sharpness is adjusted by the angle of the blade edge.

At present, glass substrates are widely used in various parts of various products, such as screens, housings, etc. In order to reduce the glass substrate from being easily scratched or broken, the glass substrate is usually strengthened, and in the manufacturing process, the glass substrate needs to be cut into The glass substrate with a smaller size is suitable for the application of various devices; however, the reinforced glass substrate has a high degree of compliance, and the cracks generated in the cutting process are more difficult to control. Therefore, how to cut the strengthened glass substrate and make the glass substrate cutting process follow It is an important issue for the industry that the scheduled cutting line is split.

In the cutting field of the existing liquid crystal display glass, a cutting cutter wheel is used to cut the glass, and the cutting cutter wheel includes a cutting edge portion, a cutter wheel disc surface, and a shaft hole for installing a cutter shaft at the center of the cutter wheel. The cutting edge is usually V-shaped, which is convenient for cutting into glass, and the material of the cutter wheel is mainly diamond, polycrystalline or polycrystalline diamond, cemented carbide material or other high hardness materials.

At present, the thickness of glass substrates, especially the glass used in liquid crystal displays, is getting thinner and thinner from 2mm to 0.1mm, and the hardness is getting larger and larger, which makes the pressure, cutting technology, breaking efficiency and other requirements and accuracy requirements when cutting are also higher. At the same time, the depth of glass cutting, the depth of cracking and the time of cracking during glass cutting are also proposed. More requirements have posed great challenges to the development of cutter wheels.

In the TFT (Thin Film Transistor, thin film field effect transistor) glass cutting process, there are cases where the sharpness of the cutter wheel needs to be strictly controlled. Too much sharpness will cause the glass to crack in advance and cannot be smoothly transferred to the next process. In this application, the angle change design of the tooth edge is used to reduce the sharpness of the tooth edge after cutting into the glass to achieve the control of the extension of the splitting time, so that the glass will not be cracked in advance before being transferred to the next process; therefore, the process of cutting the strengthened glass In the middle, the cutting edge of the glass is usually not too sharp for the first time. If it is too sharp, the strengthened glass will break into pieces, but after cutting, the blade teeth are required to increase the sharpness to accelerate the downward penetration force. The angle between the blade top and the blade root becomes sharp.

Furthermore, with the large-scale production of the 10th generation line (the 10th generation LCD panel line) and the 10.5 generation line, the glass format is getting larger and larger, and large-format glass cannot guarantee that every part of the glass format is subjected to the same Cutting pressure, this increased fluctuation of cutting instability makes some local stresses of the glass too large to crack in advance, and some local stresses are too small to crack, for mass production cutting such as 70-inch to 100-inch TV panels Brings a lot of trouble, so it really needs to be improved.

Therefore, the purpose of the present invention is to provide a cutting blade wheel that adjusts the sharpness through the angle of the blade edge, so that the cutting blade wheel can meet the needs of different sharpness cutting operations, and effectively improve the yield yield and the stability of cutting.

Therefore, the present invention adjusts the sharpness of the cutting blade wheel through the angle of the blade edge, which is that each cutting tooth of the cutting blade wheel has two connected cutting planes, and one A cutting edge formed at the junction of the two tangent planes and extending from both sides of the tooth tip to the two tooth roots, and the aforementioned tooth tip is provided at the outermost edge of the wheel body, and the cutting edge is gradually extended from the tooth root to After the addendum, the addendum extends from the addendum to the root of the other cutting tooth, the cutting edges are not on the same circumference, and the cutting edge of the cutting wheel is preliminarily controlled, and the cutting edge can be added at the same time. At different positions of the wheel body, the two cutting planes all exhibit different angle changes, so that cutting edges with different sharpnesses can be formed on the cutting wheel, so the cutting wheel can be adapted to the needs by multiplying together Cutting operations with different sharpness requirements can better adapt to the cutting of large-format glass, which can effectively improve the cutting quality and mass production yield.

[This new model]

3: Cutting wheel

31: Wheel

32: Cutting teeth

321: Cut surface

322: Cutting edge

323: addendum

324: tooth root

325: Bladeless section

322a: Angle of cutting edge

L: Cutting edge section

3221: Arc

3222: corner

FIG. 1(a) is a perspective schematic view of the first preferred embodiment of the present invention.

FIG. 1(b) is a schematic plan view of the first preferred embodiment of the present invention.

Fig. 1(c) is a cross-sectional view of A-A in Fig. 1(b).

Fig. 1(d) is a cross-sectional view of B-B in Fig. 1(b).

FIG. 1(e) is a schematic diagram of the first preferred embodiment of the present invention.

FIG. 2(a) is a schematic diagram of another variation of the first preferred embodiment of the present invention.

2(b) is a schematic diagram of another variation of the first preferred embodiment of the present invention.

FIG. 3(a) is a schematic diagram of another variation of the first preferred embodiment of the present invention.

FIG. 3(b) is a schematic diagram of another variation of the first preferred embodiment of the present invention.

4(a) is a perspective schematic view of the second preferred embodiment of the present invention.

4(b) is a schematic plan view of the second preferred embodiment of the present invention.

FIG. 5(a) is a perspective schematic view of the third preferred embodiment of the present invention.

5(b) is a schematic plan view of the third preferred embodiment of the present invention.

FIG. 6(a) is a schematic diagram of another variation of the third preferred embodiment of the present invention.

6(b) is a schematic diagram of another variation of the third preferred embodiment of the present invention.

The aforementioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

Referring to FIGS. 1(a) and 1(b), the first preferred embodiment of the present invention is a cutting blade wheel 3 that adjusts sharpness through the angle of the blade edge. The cutting blade wheel includes a wheel body 31, and a plurality of wheels are formed on the wheel The cutting teeth 32 on the outer periphery of the body 31; wherein, each cutting tooth 32 has two cut surfaces 321 connected to each other, and one formed at the junction of the two cut surfaces 321 and extending from both sides of the tooth crest 323 to the two tooth roots 324 The cutting edge 322, and the aforementioned tooth tip 323 is disposed at the outermost edge of the wheel 31, and the cutting edge 322 gradually extends from the tooth root 324 to the tooth tip 323, and then extends from the tooth tip 323 to another At the root 324 of a cutting tooth 32, the state shown in FIG. 1(a) is formed. The tooth tip 323 of each cutting tooth 32 is formed into a sharp shape, and each cutting edge 322 is formed from the tooth root 324 to the tooth top 323. In a concave arc state, or as shown in FIG. 2(a) and FIG. 2(b), the tooth tip 323 of each cutting tooth 32 forms an arc shape, and each cutting edge 322 extends from the tooth root 324 to the tooth tip 323 forms a convex arc state, so it can pass through the cutting edge 322 from the tooth root 324 to the tooth crest 323 transformation; in addition, the bottom of each face 321 can be as shown in Figure 1 (a), Figure 2 (a) A flat shape, or a concave arc shape as shown in FIG. 3(a) and FIG. 3(b). In this embodiment, the bottom of the cut surface is shown as a flat shape as an example.

With reference to FIG. 1(c) and FIG. 1(d), the cutting of each cutting tooth 32 The radial cross section of the blade 322 to the cross section of the center of the wheel 31, the cutting edge 322 at different positions of the wheel 31, the two cutting planes 321 all exhibit different angle changes, that is, from the tooth crest 323 to the root 324, The angle 322a of the two cutting planes 321 is gradually increased, so that the cutting edge 322 of the tooth top 323 can be controlled to be cut, the cutting edge 322 will gradually decrease the cutting edge 322 due to the increase of the angle of the two cutting planes 321 Sharpness; conversely, the tooth tip 323 to the tooth root 324 position can also be set, the angle 322a of the two cut surfaces 321 is gradually reduced, so that the cutting edge 322 will gradually decrease because of the angle 322a of the two cut surfaces 321, and The sharpness of the cutting edge 322 is gradually improved. In this embodiment, the tooth tip 323 to the tooth root 324 position and the angle 322a of the two cutting planes 321 are gradually increased as an example.

Referring to FIG. 1(e), when the cutter wheel 3 is used, it is mounted on a cutting machine (not shown) to cut a glass plate 4, because the cutting edge 322 of the tooth tip 323 is located on the wheel body 31 The outer edge, so the cutting edge 322 of the tooth tip 323 will first contact the glass plate 4 to cut the glass plate 4, and the two cutting surfaces 321 of the cutting edge 322 of the tooth tip 323 to the tooth root 324 The included angle 322a gradually becomes larger, so the sharpness of the cutting edge 322 will decrease as it approaches the tooth root 324, which will effectively prevent the cutting wheel 3 from being too sharp during the cutting process and avoid causing the glass plate 4 In the case of early cracking, the cutting quality is ensured, and the cutting edge 322 is an arc or concave arc design from the tooth tip 323 to the tooth root 324, which also helps to control the cutting sharpness of the cutting edge 322, matching the two Under the double change design of different included angles of the cutting surface 321, it can increase the cutting application range of the cutting wheel 3 according to the glass plate 4 with different required hardness, and relatively increase the tolerance of the cutting wheel 3 to pressure fluctuation. Therefore, each cutting tooth 32 can guarantee the same cutting quality under the condition of greater pressure fluctuation, so that it can better adapt to the cutting of large-format glass, effectively improve the production yield and cutting stability, and ensure the cutting quality.

Referring to FIGS. 4(a) and 4(b), the second preferred embodiment of the new cutting wheel 3 for adjusting the sharpness through the angle of the blade edge, the cutting wheel 3 still includes a wheel body 31 and cutting teeth 32 and other components And the aforementioned components and the purpose to be achieved are the same as those in the first embodiment, which will not be described in detail, in particular: in this embodiment, the cutting edge 322 is formed with a plurality of sections L, and the two cutting planes 321 of each section L The angle 322a is the same, and at least one cutting edge 322 of each cutting tooth 32 is cut off, so that a non-edge segment 325 is formed on the two cutting planes 321; therefore, the cutting edge 322 is formed with a plurality of segments L, And the angle 322a of the two cutting planes 321 in each section L is the same, so that the cutting edge 322 is gradually tapered in sections, so it is easier to control the sharpness of the cutting wheel 3 in production to improve the cutting When the cutter wheel 3 is outside the cutting application range and the non-edged section 325 is provided in a timely manner, the non-edged section 325 will not cause a cutting effect during the cutting process, and can also control the sharpness of the second cutting edge 322. At the same time, in addition to the function of adjusting the sharpness of the cutting edge, the bladeless section 325 also has the function of removing and evacuating chips during the cutting process, and makes the cutting process smoother and effectively improves the cutting quality.

5(a) and FIG. 5(b) the third preferred embodiment of the cutting blade wheel for adjusting the sharpness through the angle of the blade edge, the cutting blade wheel 3 still includes a wheel body 31 and cutting teeth 32 and other components, Moreover, the aforementioned components and the purpose to be achieved are the same as the first embodiment, and will not be described in detail. In particular: the cutting edge 322 of each cutting tooth 32 extends from the root 324 to the tooth crest 323, and the tooth crest 323 extends to The root 324 of another cutting tooth 32 The cutting edge 322 has at least two arcs 3221 with different arcs, and a corner 3222 is formed between any two arcs 3221, and the cutting edges 322 on different arcs 3221 are formed with different cutting planes 321; thus, in addition to the original design of the cutting plane 321, In addition to the change of the cutting edge 322 extending from the root 324 to the tooth top 323, if the cutting edge 322 has at least two arcs of different arcs 3221, the cutting blade can be made through a complementary design The sharpness change of the wheel 3 has a larger adjustment range, which can improve the tolerance of the cutter wheel 3 to pressure fluctuations; moreover, refer to FIG. 6(a) and FIG. 6(b), which is more applicable to each At least one cutting edge 322 of the cutting tooth 32 is cut off, so that a non-edge section 325 is formed on the two cutting surfaces 321, and more different transformations are formed.

Summarizing the foregoing, the new type of cutting wheel whose sharpness is adjusted by the angle of the blade edge has two cutting planes connected by each cutting tooth, and one formed at the junction of the two cutting planes and extending from both sides of the tooth crest to the two tooth roots The cutting edge, and the aforementioned tooth tip is provided at the outermost edge of the wheel body, and the cutting edge is at different positions of the wheel body, the two cutting planes show different angle changes, so that the cutting wheel can be formed with The cutting edges with different sharpness effectively improve the tolerance of the cutter wheel to pressure fluctuations, so that the cutting teeth ensure the same cutting quality under the condition of greater pressure fluctuations, so that they can better adapt to the cutting of large-format glass. Effectively improve the mass production yield and cutting stability.

However, the above are only for describing the preferred embodiments of the new model, but the scope of the implementation of the new model cannot be limited by this, that is, simple equivalent changes and modifications made according to the scope of the patent application of the new model and the content of the new specification , Should still fall within the scope of this new patent.

3: Cutting wheel

31: Wheel

32: Cutting teeth

321: Cut surface

322: Cutting edge

323: addendum

324: tooth root

Claims (6)

A cutting blade wheel whose sharpness is adjusted by the angle of the blade edge, which includes a wheel body, and a plurality of cutting teeth formed on the outer periphery of the wheel body; characterized in that each cutting tooth has two cutting planes connected together, and one formed on The two cutting planes meet and extend from both sides of the tooth crest to the cutting edge of the two tooth roots, and the aforementioned tooth crest is arranged at the outermost edge of the wheel body, and the cutting edge gradually extends from the tooth root to the tooth After the top, it continues from the tooth tip to the root of the other cutting tooth; at the same time, from the radial cross section of the cutting edge to the cross section of the center of the wheel body, the cutting edge is at different positions on the wheel body, and the two cutting planes are both Presents different angle changes. According to the first paragraph of the scope of the patent application, the cutting blade wheel is adjusted by the angle of the blade edge, wherein the cutting edge is formed with a plurality of sections, and the angle between the two cutting planes of each section is the same. According to the first paragraph of the patent application scope, the cutting blade wheel is adjusted by the angle of the blade edge, wherein at least one cutting edge of each cutting tooth is cut off, so that a non-edge section is formed on the two cutting planes. According to item 1 of the patent application scope, the cutting blade wheel is adjusted by the angle of the blade edge, wherein the cutting edge extends from the tooth tip to the root position, and the angle between the two cutting planes gradually increases. According to the first item of the scope of the patent application, the cutting blade wheel is adjusted through the angle of the blade edge to adjust the sharpness. The angle between the two cutting planes gradually decreases from the tooth tip to the root position. According to the first paragraph of the patent application scope, the cutting blade wheel is adjusted by the angle of the blade edge, wherein the cutting edge of each cutting tooth extends from the root to the tooth crest, and the tooth crest extends to the root of the other cutting tooth The cutting edge has at least two arcs with different arcs, and a corner is formed between any two arcs, and the cutting edges on different arcs have different cutting planes.

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